Examples with DirectoryTaxonomyReader org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader used on opensource projects

Example 1 with DirectoryTaxonomyReader

use of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader in project orientdb by orientechnologies.

the class LuceneNativeFacet method facetsWithSearch.

/**
   * User runs a query and counts facets.
   */
private List<FacetResult> facetsWithSearch() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);
    FacetsCollector fc = new FacetsCollector();
    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query:
    FacetsCollector.search(searcher, new MatchAllDocsQuery(), 10, fc);
    // Retrieve results
    List<FacetResult> results = new ArrayList<FacetResult>();
    // Count both "Publish Date" and "Author" dimensions
    Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
    results.add(facets.getTopChildren(10, "Author"));
    results.add(facets.getTopChildren(10, "Publish Date"));
    indexReader.close();
    taxoReader.close();
    return results;
}

Example 2 with DirectoryTaxonomyReader

use of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader in project orientdb by orientechnologies.

the class LuceneNativeFacet method drillSideways.

/**
   * User drills down on 'Publish Date/2010', and we return facets for both 'Publish Date' and 'Author', using DrillSideways.
   */
private List<FacetResult> drillSideways() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);
    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);
    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");
    DrillSideways ds = new DrillSideways(searcher, config, taxoReader);
    DrillSidewaysResult result = ds.search(q, 10);
    // Retrieve results
    List<FacetResult> facets = result.facets.getAllDims(10);
    indexReader.close();
    taxoReader.close();
    return facets;
}

Example 3 with DirectoryTaxonomyReader

use of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader in project orientdb by orientechnologies.

the class LuceneNativeFacet method facetsOnly.

/**
   * User runs a query and counts facets only without collecting the matching documents.
   */
private List<FacetResult> facetsOnly() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);
    FacetsCollector fc = new FacetsCollector();
    // MatchAllDocsQuery is for "browsing" (counts facets
    // for all non-deleted docs in the index); normally
    // you'd use a "normal" query:
    searcher.search(new MatchAllDocsQuery(), null, /* Filter */
    fc);
    // Retrieve results
    List<FacetResult> results = new ArrayList<FacetResult>();
    // Count both "Publish Date" and "Author" dimensions
    Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
    results.add(facets.getTopChildren(10, "Author"));
    results.add(facets.getTopChildren(10, "Publish Date"));
    indexReader.close();
    taxoReader.close();
    return results;
}

Example 4 with DirectoryTaxonomyReader

use of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader in project orientdb by orientechnologies.

the class LuceneNativeFacet method drillDown.

/**
   * User drills down on 'Publish Date/2010', and we return facets for 'Author'
   */
private FacetResult drillDown() throws IOException {
    DirectoryReader indexReader = DirectoryReader.open(indexDir);
    IndexSearcher searcher = new IndexSearcher(indexReader);
    TaxonomyReader taxoReader = new DirectoryTaxonomyReader(taxoDir);
    // Passing no baseQuery means we drill down on all
    // documents ("browse only"):
    DrillDownQuery q = new DrillDownQuery(config);
    // Now user drills down on Publish Date/2010:
    q.add("Publish Date", "2010");
    FacetsCollector fc = new FacetsCollector();
    FacetsCollector.search(searcher, q, 10, fc);
    // Retrieve results
    Facets facets = new FastTaxonomyFacetCounts(taxoReader, config, fc);
    FacetResult result = facets.getTopChildren(10, "Author");
    indexReader.close();
    taxoReader.close();
    return result;
}

Example 5 with DirectoryTaxonomyReader

use of org.apache.lucene.facet.taxonomy.directory.DirectoryTaxonomyReader in project lucene-solr by apache.

the class OpenTaxonomyReaderTask method doLogic.

@Override
public int doLogic() throws IOException {
    PerfRunData runData = getRunData();
    DirectoryTaxonomyReader taxoReader = new DirectoryTaxonomyReader(runData.getTaxonomyDir());
    runData.setTaxonomyReader(taxoReader);
    // We transfer reference to the run data
    taxoReader.decRef();
    return 1;
}